required momentum

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• Momentum exchange tether — Momentum Exchange Tethers is one of many applications for space tethers. This sub set represents an entire area of research using a spinning conductive and/or non conductive tether to throw spacecraft up or down in orbit (like a sling), thereby… …   Wikipedia

• Momentum — This article is about momentum in physics. For other uses, see Momentum (disambiguation). Classical mechanics Newton s Second Law …   Wikipedia

• momentum — /moh men teuhm/, n., pl. momenta / teuh/, momentums. 1. force or speed of movement; impetus, as of a physical object or course of events: The car gained momentum going downhill. Her career lost momentum after two unsuccessful films. 2. Mech. a… …   Universalium

• momentum, conservation of — ▪ physics       general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant. Momentum is equal to… …   Universalium

• Momentum theory — In fluid dynamics, the momentum theory or disk actuator theory is a theory describing a mathematical model of an ideal actuator disk, such as a propeller or helicopter rotor, by W.J.M. Rankine (1865), Alfred George Greenhill (1888) and R.E.… …   Wikipedia

• momentum — noun (plural momenta or momentums) Etymology: New Latin, from Latin, movement Date: 1610 1. a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body s mass and velocity; broadly a …   New Collegiate Dictionary

• momentum — mo·men·tum mō ment əm, mə ment n, pl mo·men·ta ment ə or momentums a property of a moving body that the body has by virtue of its mass and motion and that is equal to the product of the body s mass and velocity broadly a property of a moving body …   Medical dictionary

• Dimensionless momentum-depth relationship in open-channel flow — Contents 1 Momentum in Open Channel Flow 1.1 What is Momentum? 1.2 Momentum in a Rectangular Channel 1.3 Why is Momentum Important? …   Wikipedia

• Stress-energy-momentum pseudotensor — In the theory of general relativity, a stress energy momentum pseudotensor, such as the Landau Lifshitz pseudotensor, is an extension of the non gravitational stress energy tensor which incorporates the energy momentum of gravity. It allows the… …   Wikipedia

• Earnings Momentum — When corporate earnings per share (EPS) growth is accelerating or decelerating from the prior fiscal quarter or fiscal year. Earnings momentum typically coincides with accelerating revenues and/or expanding margins caused by increased sales, cost …   Investment dictionary

• Earth to orbit — (ETO) describes the process or means of placing a payload into an orbit around the Earth. Traditionally this has used rockets, however ETO can also include much more exotic forms of transportation such as railguns and hypersonic cannons and Space …   Wikipedia